My truck has a 6 " fabtech lift, it rides on 37" nitto mud grapplers, on 18" kmc rockstars. Home made front bumper soon to be rear, pionneer dvd nav , mtx amp with mtx sub, coleman 4500 watt inverter, mtx componets all doors. Smarty tuner, airade intake, 5 inch exhaust, seemed to loose all emissions componets at last truck pull, all deletes done. 19 miles per gallon